ASSAM Zorig

BOUCHELALLEG MERIEM , MERBATET SAIF EDDINE

Stratégies de compensation active sélectives et globale des courants harmoniques à base d’un filtre multi-variable

Mimoune Faris , Belhoute Belgassem

Commande et analyse fonctionnel d’un générateur photovoltaïque connecté au réseau via un filtre actif parallèle triphasé

Louafi boumedyen , Mansori toufik

Diagnostic des défauts au rotor dans la machine asynchrone à double stator

AMIR ALI , CHATRA ABDENNOUR

Contribution au diagnostic de la machine asynchrone par une méthode non invasive

BABECHE Yacine , BOURAS Samir

Diagnostic des machines électriques par la méthode des éléments finis

Khalil, Mihoubi

Conception d'une Machine Asynchrone à Haut Rendement Utilisant la Méthode des Eléments Finis

Osama, ABU IBAID

Diagnostic par estimation paramétrique de la MAS à cage d’écureuil Proposé et

Mohamed oulhocine, AIT MIHOUB

METHODE GLOBALE DE DIAGNOSTIC DES MACHINES ASYNCHRONES A CAGE D’ECUREUIL

Noreddin, MILOUDI

ANALYSE ELECTROMAGNETIQUE EN 2D D’UNE MACHINE ASYNCHRONE A ENCOCHES PROFONDES

ZEGHBA, Ahmed

NOUVELLE APPROCHE POUR LA CONCEPTION SOUS CONTRAINTES DES MACHINE A HAUT RENDEMENT - ANALYSE ELECTROMAGNETIQUE EN 2D -

BELAID, Ammar

DIAGNOSTIC DE LA MAS PAR LA METHODE D’IDENTIFICATION PARAMETRIQUE

In this paper, a nonlinear adaptive speed controller for a permanent magnet synchronous motor (PMSM) based on a newly developed adaptive backstepping approach is presented. The exact, input-output feedback linearization control law is first introduced without any uncertainties in the system. However, in real applications, the parameter uncertainties such as the stator resistance and the rotor flux linquage and load torque disturbance have to be considered. In this case, the exact inputoutput feedback linearization approach is not very effective, because it is based on the exact cancellation of the nonlinearity. To compensate the uncertainties and the load torque disturbance, the input-output feedback linearization approach is first used to compensate the nonlinearities in the nominal system. Then, nonlinear adaptive backstepping control law and parameter uncertainties, and load torque disturbance adaptation laws, are derived systematically by using adaptive backstepping technique. The simulation results clearly show that the proposed adaptive scheme can track the speed references the signal generated by a reference model, successfully, and that scheme is robust to the parameter uncertainties and load torque disturbance.

Citation

ASSAM Zorig , ,(2023-12-25), Nonlinear Adaptive Backstepping Control of Permanent Magnet Synchronous Motor,3rd International Conference on Scientific and Academic Research on 25-26 December in 2023 at Konya/Turkey.,Turky

ABSTRACT

Citation

ASSAM Zorig , ,(2023-12-16), Control and analysis of the behavior of the PV system connected to the AC network via an APF under various levels of solar radiations,The 1st national conference on emergent technologies in electrical engineering (NCETEE'23) December 16-17, 2023, 2023, Setif, Algeria.,Setif, Algeria.

ABSTRACT

Citation

ASSAM Zorig , ,(2023-11-23), Reliable Detection Method For Rotor Broken Bars Fault In Induction Machine,53rd ISTANBUL International Conference on “Advances in Science, Engineering & Technology” (IASET-23),Istanbul (Turkiye)

This paper is concerned with two popular and powerful methods in electrical drive applications: filed-oriented control (FOC) and space vector modulation (SVM). The proposed FOC-SVM method is incorporated with a predictive current control (PCC) based technique. The suggested method estimates the desirable electrical torque to track mechanical torque at a fixed speed operation of permanent magnet synchronous motor (PMSM). The estimated torque is used to calculate the reference current based on FOC. In order to improve the performance of the traditional SVM, a PCC method is established as a switching pattern modifier. Therefore, PCC based SVM is employed to further minimize the torque ripple and transient response to step variations of the torque command. The proposed method has been verified with MATLAB-SIMULINK model. Simulation results confirm the ability of this technique in torque and speed ripples and fixing switching frequency, simultaneously. However it is sensitive to parameter changes.

Citation

ASSAM Zorig , ,(2023-11-04), Predictive Field-Oriented Control of Permanent Magnet Synchronous Motor with Space Vector Modulation Technique,2ndInternational Conference on Contemporary Academic Research,Konya, Turkey

Fast estimation is a critical feature of the proposed modeling approach as a “forward” fast solver that has a key role in solving the “inverse” problem involved in crack sizing, especially for real-time applications. To this end, two different inversion methods have been proposed to estimate the crack depth. The first one uses an interpolation model of the 3D direct model simulation data. The second approach is based on artificial neural networks (ANN). In this article, the rotating uniform eddy current (RUEC) probe is used to detect the normal magnetic component Bz which is defined as the characteristic signal for reconstructing the crack length and depth concurrently. Using the first approach, The Bz characteristic 3D surface is presented, and this can be modeled by a fitted polynomial interpolation equation. Thus, the crack depth can be inverted using this equation referring to the experimental or simulated Bz signal and the crack length. The ANN is outlined to determine the crack depth based on the simulated Bz signature. The move from the first inversion method to the second was flexible and useful, in which the interpolation model is used as a defect signal generator for fast building of a large and efficient database for ANN training. Both of the proposed methods proved the objectivity and accuracy of the inversion results and offered more robust engineering support for automated NDT, reducing production time and increasing productivity.

Citation

ASSAM Zorig , , (2023-09-19), Fast and efficient inversion methods for crack sizing using Bz magnetic signature, International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Vol:37, Issue:2, pages:e3174, John Wiley & Sons, Inc.

his article deals with inter-turn short-circuit fault detection in stator windings of squirrel cage induction machines. The main aim is to perform harmonic analysis of different electrical signatures namely the stator phase current, external magnetic flux and electromagnetic torque at different levels of mechanical load in order to develop an efficient fault detection approach of this kind of defect in induction machines. The proposed approach is based on the analysis of saturation related harmonics at rank , where is an odd number, and magnetomotive force (MMF)-related harmonics at rank , with in stator phase current and stray flux and harmonics at rank in electromagnetic torque. The amplitudes of these last harmonics in healthy condition are compared with 3% power supply unbalance, 16.6% (40 turns) and 33% (80 turns) levels of inter-turn short-circuit fault in frequency range from 0 Hz to 2500 Hz under different levels of mechanical load. Besides, the stand-still test is also investigated in this work. Simulation study is carried out based on 2.2kW squirrel cage IM using finite element method (FEM). This method provides accurate and inexpensive tool for evaluating the performance of induction machine under healthy and faulty conditions. The obtained results demonstrate that the stray flux is the most sensitive signature to the stator winding inter-turn short-circuit fault, and it is robust against the power supply unbalance in comparison with both stator current and electromagnetic torque.

Citation

ASSAM Zorig , , (2022), A comparative study for stator winding inter-turn short-circuit fault detection based on harmonic analysis of induction machine signatures, Mathematics and Computers in Simulation, Vol:106, Issue:2, pages:273-288, ELSERIER

Frequency domain and step by step in time domain finite element analyses of the electromagnetic field in a squirrel cage inductor motor are considered for different 2D and 3D models of a rotor bar breakage process and of the end of this process - the broken bar fault.The faulty operation states of a rotor squirrel cage are correctly reflected only by the 3D models. However, there are cases when 2D approximate models, much more advantageous related the computation time and memory requirements can offer satisfactory results. Comparing 2D and 3D results, this paper shows in case of a rotor bar breakage when the option for a 2D model instead the 3D model can be accepted.

Citation

ASSAM Zorig , ,(2019), Finite Element 2D and 3D Models of a Rotor Bar Breakage in a Squirrel-Cage Induction Motor,2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD),Athens, Greece

Based on finite element analysis in time domain of a squirrel cage induction motor this paper studies the influence of the three faults - stator short-circuit, broken rotor bar and static eccentricity on the mean values and harmonics of the rotor unbalanced force. Results for loaded motor operation and for no-load motor operation are compared. The healthy state of motor operation and seven faulty cases, with single, double and triple faults, are considered. All faulty cases are characterized by important increase of the rotor force compared with the healthy case.

Citation

ASSAM Zorig , ,(2018), Impact of the Stator Short-circuit, Rotor Broken Bar and Eccentricity Faults on Rotor Force for Loaded and No-load Induction Motors Operation,2018 International Conference on Applied and Theoretical Electricity (ICATE),Craiova, Romania

his paper describes the use of a new approach optimization procedure to determine the design of three phase electrical motors. The novelty lies in combining a motor design program and employing a Hybrid Genetic Algorithm (HAGs) technique to obtain the maximum of objective function such as the motor efficiency. A method for evaluating the efficiency of induction motor is tested and applied on 2.2 kW experimental machines; the aforementioned is called equivalent circuit method (EC-M) and based on the analysis of the influence losses. As the equations which calculate the iron losses make call to magnetic induction. From this point, the paper proposes to evaluate the B (H) characteristic by estimating the circuit’s flux and the counting of excitation. Next, the optimal designs are analyzed by finite element method (FEM) and compared with results of another method which is genetics algorithms (GAs) optimisation …

Citation

ASSAM Zorig , , (2016), Hybrid Method Using Genetic Algorithm for Induction Motor Design Problem’’, The mediterranean Journal of Measurement and Control, The mediterranean Journal of Measurement and Control, Vol:11, Issue:4, pages:394, The mediterranean Journal of Measurement and Control

bstract—the paper presents the application of a finite element method for predicting the performance of induction motor having broken rotor bars. The detailed insight in magnetic field distribution of a squirrel cage induction motor forms the basis for further evaluation of its operational behavior. Increasing anomaly in magnetic field distribution due to the increasing number of broken rotor bars results in a degradation of steady-state and dynamic performance of induction motor and can be determined with computer simulation eliminating expensive and time consuming laboratory tests. Correct evaluation of faulty motor performance is very significant part of condition monitoring and diagnostic procedure in modern supervision systems of electrical drives

Citation

ASSAM Zorig , ,(2010), Finite Element Analysis of Broken Bars Fault in Induction Motor,6th International Conference on Electrical Engineering 11- 13 October 2010,BATNA

ABSTACT

Citation

ASSAM Zorig , ,(2010), Evaluation of Induction Motor Diagnosis by Finite Element Method Simulations,ICEEA’10 University of Bejaia,,Bejaia

Le but de cet article est de visualisé l'effet des pertes variable qui augmentent avec la charge et les pertes constantes (pertes fer) sur le comportement thermique de moteur asynchrone. La modélisation est basée sur la théorie de dissipation de puissance, de transfert de chaleur et du taux de croissance de la température au stator et au rotor, en prenant en compte l’effet de la vitesse sur les échanges. En développement des machines électriques en général, et les moteurs asynchrones en particulier, la température limite est un facteur principal affectant l'efficacité de la conception globale. Puisque le chargement conventionnel des moteurs asynchrone est souvent très chère, l'estimation de l'augmentation de la température par des outils de modèle mathématique et d'expériences informatiques devient de plus en plus importante. Ensuite on a utilisé notre model pour faire une surveillance thermique de chaque enroulement du moteur. Les résultats trouvés sont en bonne concordance avec des résultats des articles et expérimentales. Mots clés : MAS, Modélisation Thermique, Pertes fer, Transfert de Chaleur, Température Limite, Surveillance Thermique.

Citation

ASSAM Zorig , ADMIN Admin , ,(2010), Modélisation et Surveillance Thermique d'une Machine Asynchrone on prend on compte les Effets no Linière,International Conference on Power Electronics and Electrical Drives,ALGERIA